JPS57172347A - Electrostatic image developing toner - Google Patents

Electrostatic image developing toner

Info

Publication number
JPS57172347A
JPS57172347A JP56035169A JP3516981A JPS57172347A JP S57172347 A JPS57172347 A JP S57172347A JP 56035169 A JP56035169 A JP 56035169A JP 3516981 A JP3516981 A JP 3516981A JP S57172347 A JPS57172347 A JP S57172347A
Authority
JP
Japan
Prior art keywords
average mol
styrene
copolymer
image developing
developing toner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56035169A
Other languages
Japanese (ja)
Inventor
Hideaki Morita
Ryuhei Kasuya
Koichi Yamakawa
Makoto Tomono
Isao Furuta
Minoru Tsuneyoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JSR Corp
Nippon Synthetic Chemical Industry Co Ltd
Konica Minolta Inc
Original Assignee
Nippon Synthetic Chemical Industry Co Ltd
Konica Minolta Inc
Japan Synthetic Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Synthetic Chemical Industry Co Ltd, Konica Minolta Inc, Japan Synthetic Rubber Co Ltd filed Critical Nippon Synthetic Chemical Industry Co Ltd
Priority to JP56035169A priority Critical patent/JPS57172347A/en
Publication of JPS57172347A publication Critical patent/JPS57172347A/en
Priority to US06/634,173 priority patent/US4564573A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08706—Polymers of alkenyl-aromatic compounds
    • G03G9/08708—Copolymers of styrene
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08737—Polymers derived from conjugated dienes

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To prevent offset phenomenon in heat fixing, by using a binder resin >=60wt% styrene-butadiene copolymer having >=20wt.average mol.wt. Mw/ no.average mol.wt.Mn ratio. CONSTITUTION:A binder to be used for an electrostaitic image developing toner contains >=60wt% styrene-butadiene copolymer having 200,000-1.5million wt. average mol.wt. and >=20wt.average mol.wt. Mw/no.average mol.wt. Mn ratio. The styrene content of a said copolymer is 70-98wt%. In addition to said copolymer, polystyrene, a styrene-acrylic copolymer, and the like resin are combined to prepare the toner, thus permitting the obtained toner to have 130- 150 deg.C minimum fixing temperature lower than >=200 deg.C offset phenomenon-causing temperature, favorable pulverizability, fluidity, and triboelectricity, and further long life.
JP56035169A 1981-03-13 1981-03-13 Electrostatic image developing toner Pending JPS57172347A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56035169A JPS57172347A (en) 1981-03-13 1981-03-13 Electrostatic image developing toner
US06/634,173 US4564573A (en) 1981-03-13 1984-07-24 Electrostatic image forming toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56035169A JPS57172347A (en) 1981-03-13 1981-03-13 Electrostatic image developing toner

Publications (1)

Publication Number Publication Date
JPS57172347A true JPS57172347A (en) 1982-10-23

Family

ID=12434356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56035169A Pending JPS57172347A (en) 1981-03-13 1981-03-13 Electrostatic image developing toner

Country Status (1)

Country Link
JP (1) JPS57172347A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0277066A (en) * 1989-08-25 1990-03-16 Nippon Carbide Ind Co Inc Electrostatic charge image developing toner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0277066A (en) * 1989-08-25 1990-03-16 Nippon Carbide Ind Co Inc Electrostatic charge image developing toner
JPH0327904B2 (en) * 1989-08-25 1991-04-17 Nippon Carbide Kogyo Kk

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